Diethyl Phosphite CAS 762-04-9 Purity >99.0% (GC)

Short Description:

Chemical Name: Diethyl Phosphite

Synonyms: Phosphonic Acid Diethyl Ester

CAS: 762-04-9

Purity: >99.0% (GC)

Appearance: Colorless Transparent Liquid 

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401


Product Detail

Related Products

Product Tags

762-04-9 - Description:

Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer of Diethyl Phosphite (CAS: 762-04-9) with high quality. Ruifu Chemical can provide worldwide delivery, competitive price, excellent service, small and bulk quantities available. Purchase Diethyl Phosphite, Please contact:

762-04-9 - Chemical Properties:

Chemical Name Diethyl Phosphite 
Synonyms Phosphonic Acid Diethyl Ester; Diethyl Phosphonate; Diethyl Hydrogen Phosphonate; Phosphorous Acid Diethyl Ester; DEP; DEPI
Stock Status In Stock, Production Capacity 5000 Tons per Year
CAS Number 762-04-9
Molecular Formula C4H11O3P
Molecular Weight 138.10 g/mol
Melting Point -70℃ 
Boiling Point 50.0~51.0℃/2 mmHg (lit.) 
Density 1.072 g/mL at 25℃(lit.) 
Refractive Index n20/D 1.407(lit.)
Form Liquid, Store Under Inert Gas
Sensitive Moisture Sensitive 
Water Solubility  Miscible (Hydrolysis) with Water  
Hydrolytic Sensitivity 7: Reacts Slowly with Moisture/Water
Stability Stable. Incompatible with Strong Oxidizing Agents, Strong Acids, Acid Chlorides, Strong Bases. May Decompose on Exposure to Moisture. Combustible.
COA & MSDS Available
Sample  Available
Origin Shanghai, China
Brand Ruifu Chemical

762-04-9 - Specifications:

Items Specifications  Results
Appearance Colorless Transparent Liquid  Colorless Transparent Liquid 
Purity / Analysis Method >99.0% (GC) 99.15% 
Refractive Index n20/D 1.407~1.409 Complies 
Ethanol ≤0.80% <0.80%
Acidity ≤0.10% <0.10%
Triethyl phosphate ≤0.50% <0.50%
1H NMR Spectrum Consistent with Structure Complies
Conclusion The product has been tested and complies with the given specifications


Package: Fluorinated Bottle, 25kg/Drum, or according to customer's requirement.
Storage Condition: Keep the container tightly closed and store in a cool, dry and well-ventilated warehouse away from incompatible substances. Protect from light and moisture.
Shipping: Deliver to worldwide by air, by FedEx / DHL Express. Provide fast and reliable delivery. 


Sufficient Capacity: Sufficient facilities and technicians

Professional Service: One stop purchasing service

OEM Package: Custom package and label available

Fast Delivery: If within stock, three days delivery guaranteed

Stable Supply: Maintain reasonable stock    

Technical Support: Technology solution available

Custom Synthesis Service: Ranged from grams to kilos

High Quality: Established a complete quality assurance system


How to Purchase? Please contact Dr. Alvin Huang: or 

15 Years Experience? We have more than 15 years of experience in the manufacture and export of a wide range of high quality pharmaceutical intermediates or fine chemicals.

Main Markets? Sell to domestic market, North America, Europe, India, Korea, Japanese, Australia, etc.

Advantages? Superior quality, affordable price, professional services and technical support, fast delivery.

Quality AssuranceStrict quality control system. Professional equipment for analysis include NMR, LC-MS, GC, HPLC, ICP-MS, UV, IR, OR, K.F, ROI, LOD, MP, Clarity, Solubility, Microbial limit test, etc.

SamplesMost products provide free samples for quality evaluation, shipping cost should be paid by customers.

Factory AuditFactory audit welcome. Please make an appointment in advance.

MOQ? No MOQ. Small order is acceptable.

Delivery Time? If within stock, three days delivery guaranteed.

TransportationBy Express (FedEx, DHL), by Air, by Sea.

Documents? After sales service: COA, MOA, ROS, MSDS, etc. can be provided.

Custom SynthesisCan provide custom synthesis services to best fit your research needs.

Payment TermsProforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T (Telex Transfer), PayPal, Western Union, etc. 

762-04-9 - Risk and Safety:

Hazard Symbols Xi - Irritant
Risk Codes
R36/37/38 - Irritating to eyes, respiratory system and skin.
R43 - May cause sensitization by skin contact
Safety Description
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection.
S37/39 - Wear suitable gloves and eye/face protection
S28 - After contact with skin, wash immediately with plenty of soap-suds.
S27 - Take off immediately all contaminated clothing.
WGK Germany 1
RTECS TG7875000
HS Code 2920210000

762-04-9 - Application:

Diethyl Phosphite (CAS: 762-04-9) is a versatile reactive intermediate used in the production of various phosphorus based substances. It may be used to prepare the nickel chloride-diethyl phosphite system, efficient catalyst for the cross-coupling reaction between various functionalized arylzinc halides and aryl bromides, triflates and activated chlorides.
It may be used:
In the stereoselective synthesis of β-fluorinated alkylphosphonates
Used in synthesis of homoallylic bromide
Used in synthesis of series of carbazole-based α-aminophosphonates
Used as an extraction agent and phosphate intermediate.
Used in synthesis of pesticides kitazine and phosethyl-Al as well as synthetic O, O-diethyl phosphoryl chloride.
Used for the synthesis of plasticizers, flame retardants, etc.
Diethyl Phosphite is reported to be chemical warfare agent (CWA) simulant, simulant for nerve agents sarin, soman, tabun, and VX. 

  • Write your message here and send it to us